IP09K vs IP28
Head-to-head comparison of two IEC 60529 ingress protection ratings.
IP09K and IP28 are both IEC 60529 ingress protection codes, but they differ in solid-object protection (level 0 vs 2) and liquid protection (level 9K vs 8). IP09K is rated for no protection and high-pressure, high-temp water jets, while IP28 provides > 12.5 mm — finger and continuous immersion (manufacturer-specified).
The IP09K rating offers no protection against solid objects and resistance to high-pressure (8–10 MPa), high-temperature (80 °C) water jets. It is an IEC 60529 ingress protection code combining first-digit (solid) level 0 with second-digit (liquid) level 9K.
Specified under IEC 60529, IP28 denotes protection against solid objects larger than 12.5 mm and protection against the effects of continuous immersion in water under conditions specified by the manufacturer.. It is an IEC 60529 ingress protection code combining first-digit (solid) level 2 with second-digit (liquid) level 8.
Detailed comparison
The stronger rating on each row is highlighted in emerald.
Solid protection (first digit)
IP09K
0 — No Protection
IP28
2 — > 12.5 mm — Finger
Liquid protection (second digit)
IP09K
9 — High-Pressure, High-Temp Water Jets
IP28
8 — Continuous Immersion (manufacturer-specified)
Dust-tight
IP09K
No
IP28
No
Water-jet resistant
IP09K
Yes
IP28
Yes
Submersible
IP09K
Yes
IP28
Yes
Outdoor suitable
IP09K
Yes
IP28
Yes
The exact difference (IP09K vs IP28)
Solid protection
IP09K
Level 0 — No Protection
IP28
Level 2 — > 12.5 mm — Finger
IP09K provides "No Protection" (level 0), while IP28 provides "> 12.5 mm — Finger" (level 2). IP28 is 2 levels higher.
Liquid protection
IP09K
Level 9 — High-Pressure, High-Temp Water Jets
IP28
Level 8 — Continuous Immersion (manufacturer-specified)
IP09K handles 8–10 MPa (High-Pressure, High-Temp Water Jets), while IP28 handles Specified by manufacturer (Continuous Immersion (manufacturer-specified)). IP09K provides 1 level more liquid protection.
NEMA equivalents
No direct NEMA equivalent.
No direct NEMA equivalent.
Recommendation
IP28 offers higher overall protection than IP09K. Choose IP28 for harsher environments; IP09K may suffice for milder conditions and can be more cost-effective.